115 Exam3 Sp 2004

115 Exam3 Sp 2004 - Name Section Student I.D Instructor...

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Name _____________________________ Chemistry 115 Section ____________ EXAM III Total Points = 120 Student I.D. # ___________________ Wednesday, 8:30 PM Instructor ________________________ April 14, 2004 Directions : 1. Each student is responsible for following directions. Read this page carefully. 2. Write your name and other requested information on this page and on the separate answer sheet. 3. CODE your name on the answer sheet using an ordinary (#2) pencil. 4. CODE your correct identification number ( 9 digit Social Security ) on the answer sheet. THIS IS VERY IMPORTANT! 5. CODE your section number on the answer sheet. Please use all four digits, 0101, 0102, 0201, etc. This is also very important! 6. Put all calculations on the examination pages. DO NOT PUT ANY EXTRA MARKS ON THE COMPUTER ANSWER SHEET! 7. This exam consists of 24 multiple-choice questions worth 5 points each. Choose the one best or correct answer for each question and write it both on your exam paper and on the computer answer sheet. The computer answer sheet is the only one that will be graded! 8. This exam consists of 7 pages plus a Periodic Table. Please check to be sure that you have them all! END OF EXAM 1) Please make sure that you have entered 24 answers on your scan sheet. 2) Make sure that you have entered your name, ID number (9 digit Social Security), and lab section number (4 digits). 3) You MUST turn the scan sheet in to your TA before leaving the exam!
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2 Chem 115 ! Exam 3 ! 4/14/04 _B____ 1. Monochromatic light waves of long wavelength have: (a) high frequency. (b) low frequency. (c) frequency no different from short wavelength light; the frequency of light is a constant. (d) many frequencies as required by the Uncertainty Principle. (e) undefined frequency. _D____ 2. In the photoelectric effect, light incident on a metal produces electrons: (a) when light of any given frequency shines long enough on the surface (b) when light of any given frequency is of sufficient intensity (bright enough) (c) when the wavelength of the light is made long enough (d) when the frequency of the light exceeds a threshold value (e) when light of any frequency strikes the metal surface as photons _A____ 3. White light is separated by a prism to form the colors of the rainbow.
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115 Exam3 Sp 2004 - Name Section Student I.D Instructor...

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